Default Domains

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If you have not explicitly set a domain, the graph tool will choose one for you.

 

Cartesian and inverse graphs have a domain implied by the size of the axes and the graph tool will automatically draw a graph for this implied domain.

 

Polar and parametric graphs have no implied domain so the graph tool uses:

 

Polar graphs                        0 ≤ θ ≤ 360 (degrees mode)

                                 0 ≤ θ ≤ 2π (radian mode)

 

Parametric graphs                0 ≤ τ ≤ 20

 

If your polar or parametric graph is incomplete, you may need to set your own domain.